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BORGWARNER
iDM傳動(dòng)系統(tǒng)的架構(gòu)與開發(fā)
博格華納楊世卿Dec.5,2025
Agenda
EViDMDrivelinelayouttypes
?ParallelLayshaft
?ConcentricLayshaft
?Coaxial(Planetary)
?Comparison
?REEViDMDrivelinearchtecture
?Currentlywidelyused
?Nextgeneration
?Nextgeneratonarchitecture
?Q&A
2BORGWARNER
Agenda
?EViDMDrivelinelayouttypes
?ParallelLayshaft
?ConcentricLayshaft
?Coaxial(Planetary)
?Comparison
?REEViDMDrivelinearchitecture
Currentlywidelyused
Next
Next
generation
generationarchiteture
?Q&A
3BORGWARNER
EViDMDrivelinelayouttypes
Accordingtothestructure,gearboxlayoutcanbecommonlyclassifiedinto:ParallelLayshaftoff-axis
ConcentricLayshaft(On-axis)
Coaxial(PlanetaryOn-axis)
Category
ParallelLayshaft
ConcentricLayshaft
Coaxial(Planetary)
Off-axis
On-axis
Sketch
4BORGWARNER
EViDMDriveline
layouttypes
Accordingtothestructure,gearboxlayoutcanbecommonlyclassifiedinto:
·ParallelLayshaftoff-axis
·ConcentricLayshaft(On-axis)
·Coaxial(PlanetaryOn-axis)
Category
ParallelLayshaft
ConcentricLayshaft
Coaxial(Planetary)
Off-axis
On-axis
Sketch
5BORGWARNER
ParallelLayshaft
Off-axisarchitecturefortheinputshafandoutputshaftMaincomponents
·nputshaftassembly
·countershaftassembly
·outputshaftassemblyInputshaftassembly
·Parallellayshaftisthemostwidelyusedarchitecture.Ifnospacelimit,thisshouldbethebestchoice.
6BORGWARNER
ConcentricLayshaft
On-axisarchitecturefortheinputshaftandoutputshaft.
Maincomponents
cIuttesrhassinlegratedrotorshaft)Countershaftassembly
·outputshaftassembly
·linkshaftassembly
Outputshaftassembly(differential)
·Thistypeusuallyusedforlimitedspace&lowtorquecapacity.
7BORGWARNER
Coaxial(Planetary)
On-axisarchitecturefortheinputshaftandoutputshaft,withplanetarygearsinside.
Maincomponents
·inputshaftassembly(integratedrotorshaft)
·planetarygearassembly
·outputshaftassembly(panetarycarrier+bevelgearfordifferential)
·linkshaftassemblyandringgear.
PlanetarycarrierPlanetarycarrierEmbeddifferentialbevelgearr
Planetarygearassembly(x3)Bevelgearfordifferential
8BORGWARNER
9BORGWARNER
Comparisonofenvelopespace
TheenvelopespaceXYZofthegearboxlayoutwiththesamewheelendtorqueisasfollows.
Item
ParallelLayshaft
ConcentricLayshaft
Coaxial
Diff-tradition
Diff-Embed
X
400
320
260
260
Y
180
210
205
165
Z
280
250
260
260
Volume
20.16L
16.8L
13.858L
11.154L
Graph
(XandZcontainshousing,Yistheaxial)
·PlanetaryCo-axialisthesmallest,45%spacebenefitcomparedwithparallel.
Comparationfordifferenttypegearbox
Comment
Eventhoughplanelarygears'pricedecreasedrecently,it'sexpensive.
Planetarygearboxismostcompact
Planetarygearsarehardtoproduce
Planetarygearsaremorecomplextoassemble
Planetarygears'NVHishardtocontroldueto
·complexityinmanufacturingandassembly
·Meshphasedesignconsideration
Hardlubricationongearsandbearings
Scoresbasedonsimilaroillevel.
Morerotarpartsmerged,higheroilchurningloss.
Planetarycarrier&NRBsarehardtogetlubricated
Item
BOMCost
Envelopespace
Machiningfriendly
Assemblyfriendly
ParallelLayshaft
++
+
++
+
+
+
+
ConcentricLayshaft
+
+
+
++
NVH
Reliaility
Eficiency
Lubrication
Coaxial
Planetary
·
··
+
+
+
++
-
10BORGWARNER
Conclusionforthegearboxtypes
·Parallellayshaftsuggesttoconsiderasthefirstchoice
·Gooddesignmaturityandindustrializationlevel
·Costbenefit
·Concentriclayshaftsuggesttoconsiderassecondchoice
·Designislittleexpensivethanparallellayshaft
·NVHperformancenoteasytocontrolathighloadcondition
·Coaxialplanetarysuggesttouseforlimitedspacecondition
·Mostexpensive&complexdesign
·Smallestspaceneeded
11BORGWARNER
Agenda
?EViDMDrivelinelayouttype
ParallelLayshafl
ConcentricLayshaft
Coaxial(Plenetary)
Conpanjson
?REEViDMDrivelinearchtecture
?Currentlywidelyused
?Nextgeneration
?Nextgenerationarchitecture
Q&A
12BORGWARNER
REEViDMDrivelinelayout-Currentlywidelyused
REEV(P1+P3)
2motorswithonlyseriesmode
PHEV(P1+P3)
2motorswithseries¶llelmode
REEV(P1+P4)
2motors(standalonegenerator+P4)
離合器
瞳出軸
Picturesfromintemet比亞迪汽車DM濕助系統(tǒng)譯解
·Alloftheabovearchitectureshas2motors,canaccomplish2wheelsdrive.Can'thavethebestcost
13BORGWARNER
REEViDMDrivelinelayout-Nextgenerationarchitecture
Motorposition
·In-linewithICE
·off-linewithICE
Couplingtype
·Frictionplate
Couplingfunction
·Mono-stable
·Bi-stable
Gearpairtype
·W/planetarygears
·W/oplanetarygears
Dampertype
·W/physicaldamper
·W/ophysicaldamper
·Comfortability
·Efficiency
Shiftspeed
·Comfortability
14BORGWARNER
15
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